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Rare Earth Elements in Ultramafic and Mafic Rocks and their Minerals

Rare Earth Elements in Ultramafic and Mafic Rocks and their Minerals Author Felix P. Lesnov
ISBN-10 9780415621076
Release 2012-03-22
Pages 324
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This book presents an extensive overview of literature published globally in the last decades on REE distribution in minor and accessory minerals from various types of ultramafic, mafic, and other plutonic rocks. It is a continuation of the author’s work published in 2010: Rare Earth Elements in Ultramafic and Mafic Rocks and their Minerals. Main Types of Rocks. Rock-Forming Minerals. The analytical database created includes over 900 analyses of minerals, including garnets (341), chrome-spinels (38), ilmenites (160), zircons (210), apatites (62), titanites (51), perovskites (46) and micas (35). The book offers a brief historical background on REE distribution for each of the minerals and analytical methods for their determination; further, the main features of concentration of these impurities in the samples of different rocks and their manifestations are described and the regularities of REE distribution between coexisting phases, including parent melts, systematized available estimates of distribution coefficients are considered. REE isomorphism in these minerals is discussed as well as the possibilities of using data on REE distribution as typomorphic signs of determining the crystallization conditions of minerals. The numerous analyses of REE presented in this book can be used as reference data. Finally, there is an additional chapter on a new problem: the study of geochemical relations between REE and platinum group elements. As an overview of modern data on the geochemistry of REE in minor and accessory minerals from rocks of mafic-ultramafic complexes and as a reference book, this work will be of interest to a wide range of specialists studying petrology and geochemistry of products of ultramafic and mafic magmatism, including ore mineralization, as well as for graduate and undergraduate university students in geology departments.



Petrology of Polygenic Mafic Ultramafic Massifs of the East Sakhalin Ophiolite Association

Petrology of Polygenic Mafic Ultramafic Massifs of the East Sakhalin Ophiolite Association Author Felix P. Lesnov
ISBN-10 9781351852227
Release 2017-01-12
Pages 300
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The monograph is concerned with results of studies of petrology of mafic-ultramafic massifs as part of the East Sakhalin ophiolite association. It generalizes and interprets a large body of data (mainly original data) on geology, petrography, petrochemistry, and geochemistry of rocks; mineralogy and geochemistry of rock-forming and accessory minerals; chromite and platinum contents, and isotopic age of zircons from rocks of the typical mafic-ultramafic massifs of the East Sakhalin ophiolite association: Berezovka, Shel’ting, Komsomol’sk, and South Schmidt. Gabbroids from the Berezovka massif contain ultramafic xenoliths. Ultramafic rocks are locally cut by gabbroid and pyroxenite veins. Three spatially close but genetically autonomous bodies are distinguished in the structure of the massifs under study: protrusion of upper-mantle restitic ultramafic rocks (harzburgites, lherzolites, and dunites); intrusion of orthomagmatic gabbroids (gabbronorites, gabbro, and norites) that cuts it; and contact-reaction zone, located along the boundaries between gabbroid intrusion and ultramafic protrusion, which consists of hybrid ultramafic rocks (wehrlites, websterites, clinopyroxenites, and their olivine- and plagioclase-containing varieties) and hybrid gabbroids (melano- and mesocratic olivine gabbronorites and gabbro as well as troctolites). The hybrid ultramafic rocks and gabbroids are the product of interaction between mafic melts and restitic ultramafic rocks. Taking into account the later formation of the gabbroid intrusions compared to the ultramafic protrusions, the massifs in question are determined as polygenic. The idea of their polygenic formation is supported by data on the isotopic age of zircons from the Berezovka massif rocks. In this monograph the author develops his earlier proposed concept of polygenic formation of mafic–ultramafic massifs belonging to ophiolite associations. The book addresses a wide circle of petrologists and practicing geologists as well as senior-year students and postgraduates studying problems of mafic-ultramafic magmatism.



Rare Earth Minerals

Rare Earth Minerals Author A.P. Jones
ISBN-10 0412610302
Release 1995-12-31
Pages 372
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30% discount for members of The Mineralogical Society of Britain and Ireland Rare Earth Minerals presents a current overview of this geologically and industrially important group of minerals. It presents a wide variety of formats, crystal structures, petrographic descriptions, analytical data and numerous illustrations from outcrop photos to SEM pictures and crystallographic models.



Phosphate Minerals

Phosphate Minerals Author J.O. Nriagu
ISBN-10 9783642617362
Release 2012-12-06
Pages 444
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The literature on the geology, chemistry, and biochemistry of phosphorus generally takes its mineralogy for granted. The in cidental information on phosphate minerals given in these texts is often obsolescent and inaccurate. The few mineralogical texts that have dealt comprehensively with the phosphate minerals have now become outdated, and typically present the essential information in a manner unsuitable for nongeological readers. This volume is intended as a ready reference for workers who require good basic information on phosphate minerals or their synthetic equivalents. The topics covered should appeal to geologists and geochemists, lithologists, environmental scientists and engineers, chemists and biochemists who have any interest in the intricate world of phosphorus. The hard tissues of many vertebrates and the many pathological calcifications consist mostly of phosphate minerals. The precipita tion of these compounds also plays a major role in the ecological cycling of phosphorus, and occasionally even dominates the behavior of many trace metals in many geochemical and biolog ical systems. Indeed, many pegmatitic phosphate minerals have acquired some notoriety because of the rarer trace metals which they tend to accumulate. With the commercialization of phosphate fertilizers since the early part of the 19th century, phosphate minerals have assumed an important role in industrial chemistry and agriculture. Clearly, the study of phosphate minerals is important from the economic, agricultural, environmental and (human and animal) health viewpoint.



ELEMENTS OF GEOLOGY

ELEMENTS OF GEOLOGY Author S.M. MATHUR
ISBN-10 8120335155
Release 2008-04-22
Pages 164
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Aimed at B.Sc. students of geology, this introductory text develops a basic understanding of the Earth as a complex, evolving system of geological processes. This book will also be of immense use to those postgraduate students of geology who opt for this stream after graduating in disciplines other than geology. Geology as a science has recently gained increasing importance because of the current developments in oil and mineral exploration and also because of recent occurrences of earthquakes and tsunamis. This book covers the entire spectrum of the geologic concepts and relates them to the main processes of geomorphology, earthquakes and volcanoes. Important types of the three categories of rocks—igneous, sedimentary and metamorphic—that form the crust of the Earth are described with their characteristic mineralogy. Major structures that are born of tectonic activities are discussed. Palaeontological descriptions cover not only the plant and animal groups but also other evidences of life in the geological record and evolution. An important feature of the text is that modern stratigraphic methods of classification are outlined clearly, and the latest geologic time scale with numerical ages as approved in 2004 by the International Commission on Stratigrahy of the International Union of Geological Sciences is incorporated.



Geological Survey Professional Paper

Geological Survey Professional Paper Author
ISBN-10 UCSD:31822020626768
Release 1968
Pages
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Geological Survey Professional Paper has been writing in one form or another for most of life. You can find so many inspiration from Geological Survey Professional Paper also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Geological Survey Professional Paper book for free.



Rare Earth Elements in Ultramafic and Mafic Rocks and their Minerals

Rare Earth Elements in Ultramafic and Mafic Rocks and their Minerals Author Felix P. Lesnov
ISBN-10 9780203830314
Release 2010-09-28
Pages 608
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This book gives an overview of the world’s literature on analytical data and theoretical concepts of the regularities of rare earth elements (REE) in ultramafic and mafic rocks of different chemical and mineral compositions – mantle restites (including those composing mantle xenoliths in alkali basaltoids), highly magnesium hypabyssal rocks, plutonic rocks of mafic-ultramafic and ultramafic-mafic massifs, as well as in the main minerals composing these rocks – olivines, orthopyroxenes, clinopyroxenes, plagioclases, and amphiboles. Much attention is given to a comparative analysis of the REE distribution in rocks and minerals from different types of massifs, complexes, and provinces. Various aspects of their intragranular and intermineral distribution are considered, and data on the coefficients of their partition between minerals and their parental melts as well as between coexisting minerals are generalized. Probable schemes of REE isomorphism in rock-forming minerals are discussed. The generalization is based on the results of analyses of several thousands of rock samples and more than 2000 analyses of minerals, part of which was carried out with samples from author’s collections. The book is intended for specialists in petrology and geochemistry of ultramafic, mafic, and other types of igneous rocks as well as students of geological departments of colleges and post-graduate students.



Geoscience Abstracts

Geoscience Abstracts Author
ISBN-10 CHI:097873339
Release 1966-08
Pages
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Geoscience Abstracts has been writing in one form or another for most of life. You can find so many inspiration from Geoscience Abstracts also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Geoscience Abstracts book for free.



Field Guide to Meteors and Meteorites

Field Guide to Meteors and Meteorites Author O. Richard Norton
ISBN-10 9781848001572
Release 2008-05-25
Pages 287
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What is unique about Richard Norton's book is that it is both a field guide to observing meteors, and also a field guide to locating, preparing and analysing meteorites. In addition to giving the reader information about observing techniques for meteors, this book also provides a fully detailed account of the types of meteorites, how and where to find them, how to prepare and analyse them. The book provides everything the amateur astronomer (or geologist!) needs to know about meteors and meteorites. It is thus the only complete book on the subject available at present.



Chemical Abstracts

Chemical Abstracts Author
ISBN-10 UOM:39015057324496
Release 2002
Pages
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Chemical Abstracts has been writing in one form or another for most of life. You can find so many inspiration from Chemical Abstracts also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Chemical Abstracts book for free.



Origin of Potassium rich Silica deficient Igneous Rocks

Origin of Potassium rich Silica deficient Igneous Rocks Author Alok Krishna Gupta
ISBN-10 9788132220831
Release 2014-11-11
Pages 536
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The book summarizes the occurrence, geochemistry, mineralogy, petrology and phase-equilibria studies in air and under high pressures related to the most intriguing group of potassium-rich mafic and ultramafic rocks, often including host of exotic mineral assemblages including feldspathoids. Mantle-derived K-rich melts had intrigued most of the founders of Geology and many of the later experts in the field of Igneous Petrology, because they are sometimes associated with carbonatites and even diamond. They tend to contain anomalous concentration of many such elements as K, Rb, Sr, U, F, P, etc., along with Ni, Co and Cr indicating a mixture of crust and mantle materials. Although these rocks occur rarely in ancient geologic time, they have been erupting mostly in modern geological history (less than last 120 Ma or so). Are the old age data real or the result of a sampling problem? Modern observations leave no doubt that sediments must be subducted on a large scale. There is now evidence that the upper mantle (and perhaps even the lower mantle) is not homogeneous but rather like a fruit cake, and that there are thermal anomalies in the mantle resulting from deep mantle plumes or subduction. Is this related to release of these unusual rocks clearing the mantle of left over subduction materials? This volume, written for those interested in the geochemistry of K-rich melts from the deep Earth, reviews the present state of knowledge of these unique igneous rocks. The author is an expert in the field of Igneous Petrology and the book will serve as a valuable reference book for researchers and academicians in the discipline.



Indian Science Abstracts

Indian Science Abstracts Author
ISBN-10 UOM:39015064823787
Release 2005-09
Pages
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Memoir

Memoir Author
ISBN-10 1862391726
Release 2004
Pages 255
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Memoir has been writing in one form or another for most of life. You can find so many inspiration from Memoir also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Memoir book for free.



Atlas of Mineral Resources of the ESCAP Region

Atlas of Mineral Resources of the ESCAP Region Author
ISBN-10 9211195594
Release 1990
Pages 124
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Atlas of Mineral Resources of the ESCAP Region has been writing in one form or another for most of life. You can find so many inspiration from Atlas of Mineral Resources of the ESCAP Region also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Atlas of Mineral Resources of the ESCAP Region book for free.



Ontario Geological Survey Miscellaneous Paper

Ontario Geological Survey Miscellaneous Paper Author
ISBN-10 CHI:33431128
Release 1990
Pages
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Ontario Geological Survey Miscellaneous Paper has been writing in one form or another for most of life. You can find so many inspiration from Ontario Geological Survey Miscellaneous Paper also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Ontario Geological Survey Miscellaneous Paper book for free.



Report of Activities Resident Geologists

Report of Activities     Resident Geologists Author
ISBN-10 STANFORD:36105006177963
Release 1991
Pages
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Ultramafic and related rocks

Ultramafic and related rocks Author Peter J. Wyllie
ISBN-10 UOM:39015004613645
Release 1967
Pages 464
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Ultramafic and related rocks has been writing in one form or another for most of life. You can find so many inspiration from Ultramafic and related rocks also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Ultramafic and related rocks book for free.